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A260054
Composites whose prime factorization in base 11 is an anagram of the number in base 11.
11
4617, 7047, 18193, 33534, 180803, 196352, 217147, 283983, 386391, 422144, 448147, 616977, 705875, 842967, 886250, 926336, 947125, 954747, 1169536, 1235875, 1373375, 1866955, 1883049, 1968259
OFFSET
1,1
LINKS
EXAMPLE
4617 = 3^5 * 19. In base 11, 3518 = 3^5 * 18.
MATHEMATICA
Select[Range[10^6], !PrimeQ[#] && Sort@ IntegerDigits[#, 11] == Sort@ Flatten@ IntegerDigits[ Select[ Flatten@ FactorInteger@ #, #>1 &], 11] &] (* Giovanni Resta, Jul 14 2015 *)
KEYWORD
base,easy,nonn
AUTHOR
Stephen Tucker, Jul 14 2015
STATUS
approved